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_aByerlee, Derek. _916489 |
| 245 | 0 | _aReconciling conflicts in sequential cropping patterns through plant breeding ; the example of cotton and wheat in Pakistan's Punjab | |
| 500 | _aSobretiro de : Agricultural Systems 24 : 291-304, 1987 | ||
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_aAlgodon _xMejoramiento. _94035 |
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_aRotación de cultivos. _9100243 |
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_aTrigo _xMejoramiento. _9115057 |
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